Home / 657,413.58-986,268.18-208,161.30

Finding the Fourth Proportional to 657,413.58, 986,268.18 and 208,161.30

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Solution

The fourth proportional to 657,413.58, 986,268.18 and 208,161.30 is: 312,288.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,413.58 : 986,268.18 = 208,161.30 : x
  2. Step 2: Convert to fraction form
    657,413.58/986,268.18 = 208,161.30/x
  3. Step 3: Cross multiply
    657,413.58x = 986,268.18 × 208,161.30
  4. Step 4: Simplify right side
    657,413.58x = 205,302,866,497.43
  5. Step 5: Solve for x
    x = 205,302,866,497.43/657,413.58
  6. Step 6: Final answer
    x = 312,288.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.